Acar plicata (Dillwyn, 1817) (additional source)
Anteaeolidiella indica (Bergh, 1888) (additional source)
Aplysia parvula Mörch, 1863 (additional source)
Arion distinctus Mabille, 1868 (basis of record)
Arion hortensis A. Férussac, 1819 (basis of record)
Arion intermedius Normand, 1852 (basis of record)
Berthellina citrina (Rüppell & Leuckart, 1828) (additional source)
Candidula intersecta (Poiret, 1801) accepted as Xeroplexa intersecta (Poiret, 1801) (additional source)
Cerithium columna G. B. Sowerby I, 1834 (additional source)
Cerithium nesioticum Pilsbry & Vanatta, 1906 (additional source)
Chama Linnaeus, 1758 (additional source)
Chiton (Chiton) glaucus J. E. Gray, 1828 represented as Chiton glaucus J. E. Gray, 1828 (basis of record)
Cochlicella barbara (Linnaeus, 1758) (additional source)
Cochlicopa lubrica (O. F. Müller, 1774) (basis of record)
Coneuplecta calculosa (A. Gould, 1852) (basis of record)
Cornu aspersum (O. F. Müller, 1774) (basis of record)
Cylichna Lovén, 1846 (additional source)
Dendrodoris nigra (W. Stimpson, 1855) (additional source)
Deroceras laeve (O. F. Müller, 1774) (basis of record)
Deroceras panormitanum (Lessona & Pollonera, 1882) (basis of record)
Deroceras reticulatum (O. F. Müller, 1774) (basis of record)
Finella A. Adams, 1860 (additional source)
Galba truncatula (O. F. Müller, 1774) (additional source)
Galeropsis monodonta (Blainville, 1832) (basis of record)
Halgerda willeyi Eliot, 1904 (additional source)
Hipponix conicus (Schumacher, 1817) accepted as Sabia conica (Schumacher, 1817) (additional source)
Hopkinsia plana (Baba, 1960) accepted as Okenia plana Baba, 1960 accepted as Ceratodoris plana (Baba, 1960) (basis of record)
Lauria cylindracea (Da Costa, 1778) (additional source)
Lehmannia nyctelia (Bourguignat, 1861) accepted as Letourneuxia nyctelia (Bourguignat, 1861) (basis of record)
Limacus flavus (Linnaeus, 1758) (basis of record)
Limaria orientalis (A. Adams & Reeve, 1850) (additional source)
Limax maximus Linnaeus, 1758 (basis of record)
Limnoperna securis (Lamarck, 1819) accepted as Xenostrobus securis (Lamarck, 1819) (additional source)
Lymnaea stagnalis (Linnaeus, 1758) (additional source)
Lyrodus medilobatus (Edmonson, 1942) (additional source)
Lyrodus pedicellatus (Quatrefages, 1849) (additional source)
Milax gagates (Draparnaud, 1801) (basis of record)
Mimachlamys sanguinea (Linnaeus, 1758) (additional source)
Modiolus auriculatus Krauss, 1848 (additional source)
Musculista senhousia (W. H. Benson, 1842) accepted as Arcuatula senhousia (W. H. Benson, 1842) (additional source)
Myosotella myosotis (Draparnaud, 1801) (additional source)
Notocochlis gualteriana (Récluz, 1844) (additional source)
Ommastrephes bartramii (Lesueur, 1821) (additional source)
Ostrea chilensis Küster, 1844 (additional source)
Oxychilus allarius (J. S. Miller, 1822) accepted as Oxychilus alliarius (J. S. Miller, 1822) (basis of record)
Oxychilus cellarius (O. F. Müller, 1774) (basis of record)
Oxychilus draparnaudi (H. Beck, 1837) (basis of record)
Oxynoe viridis (Pease, 1861) (additional source)
Phidiana indica (Bergh, 1896) accepted as Caloria indica (Bergh, 1896) (additional source)
Philine auriformis Suter, 1909 (additional source)
Physa acuta Draparnaud, 1805 accepted as Physella acuta (Draparnaud, 1805) (basis of record)
Placida dendritica (Alder & Hancock, 1843) (additional source)
Planorbarius corneus (Linnaeus, 1758) (basis of record)
Pleurobranchaea maculata (Quoy & Gaimard, 1832) (additional source)
Potamopyrgus antipodarum (J. E. Gray, 1843) (additional source)
Pseudosuccinea columella (Say, 1817) (basis of record)
Pyrunculus Pilsbry, 1895 (additional source)
Radix auricularia (Linnaeus, 1758) (additional source)
Ruditapes largillierti (R. A. Philippi, 1847) accepted as Venerupis (Ruditapes) largillierti (R. A. Philippi, 1847) represented as Venerupis largillierti (R. A. Philippi, 1847) (additional source)
Saccostrea glomerata (A. Gould, 1850) (additional source)
Segmentina complanata (Linnaeus, 1758) accepted as Hippeutis complanatus (Linnaeus, 1758) (basis of record)
Sepia Linnaeus, 1758 (additional source)
Sepioteuthis lessoniana A. d'Orbigny, 1826 (additional source)
Sypharochiton Thiele, 1893 (additional source)
Sypharochiton pelliserpentis (Quoy & Gaimard, 1835) (basis of record)
Syrnola A. Adams, 1860 (additional source)
Tandonia budapestensis (Hazay, 1880) (basis of record)
Tandonia sowerbyi (A. Férussac, 1823) (basis of record)
Testacella haliotidea Draparnaud, 1801 (basis of record)
Testacella maugei A. Férussac, 1819 (basis of record)
Thecacera pennigera (Montagu, 1813) (additional source)
Theora lubrica A. Gould, 1861 (additional source)
Vallonia costata (O. F. Müller, 1774) (basis of record)
Vallonia excentrica Sterki, 1893 (basis of record)
Vertigo ovata Say, 1822 (basis of record)
Vitrea crystallina (O. F. Müller, 1774) (basis of record)
Xenostrobus securis (Lamarck, 1819) (additional source)
Xylophaga W. Turton, 1822 (additional source)
Zonitoides arboreus (Say, 1817) (basis of record)

New Zealand for Lymnaea stagnalis (Linnaeus, 1758)  (origin: alien)
New Zealand Exclusive Economic Zone for Crassostrea gigas (Thunberg, 1793)  (origin: alien)
New Zealand Exclusive Economic Zone for Limnoperna securis (Lamarck, 1819) 
New Zealand Exclusive Economic Zone for Myosotella myosotis (Draparnaud, 1801)  (origin: alien)
New Zealand Exclusive Economic Zone for Polycera hedgpethi Er. Marcus, 1964  (origin: native - non-endemic)
New Zealand Exclusive Economic Zone for Xenostrobus securis (Lamarck, 1819)  (origin: native - non-endemic)